Export page to PDF truncates tables in the new editor

Summary

Exporting a page to PDF, that contains a "Columns" macro with two or more columns and containing one or more tables, will result in truncated tables (mainly on the left margin of the table).

Environment

• "Columns" macro with two or more columns;
• A Table;
• New Confluence Editor.

Steps to Reproduce

1. Insert into a page a "Columns" macro, select two columns;
2. Insert a table into the page (even a single column table will do);
3. Publish the page
4. Click (...) drop-down menu > Export to PDF

Expected Results

• PDF file should reproduce the same formatting as the original document.

Actual Results

• Tables are truncated on the left margin, as can be seen in the next screenshot.

Notes

• There were some suggestions on other tickets regarding editing the PDF stylesheet on Space Settings, but I've tried the following workarounds but none of them worked to circumvent this BUG.

@page
{
/*A4-sized pages in landscape orientation are 297 mm wide by 210 mm long*/
size: 297mm 210mm;
}

table
{
   table-layout:auto !important;
   width: auto !important;
   max-width: 90% !important
} 

table
{
   table-layout:auto !important;
   width: auto !important;
}

Workaround

• Paste this on the space settings for PDF stylesheet

  @page {
   size: 210mm 297mm; /* A4, change for US letter */
   margin: 18mm 20mm;
  }
  div.wiki-content {
   width: 150mm !important;
   align-self: center !important;
   margin: 20px 30mm 20px 20px !important;
   line-height: 1.4 !important
  }